skinner



"March 20, 1928.

' A. D. SKINNER ENGINE Filed Aug. 4, 1921 3 Sheets-Sheet l March 20, 1928.

A. D. vSKINNER ENGINE Filed Aug. 4, 1931 3 Sheets-Sheet 2 3 Sheets-Sheet 3 A. p. SKINNER ENGINE Filed Aug. 4, 1921 Match 20, 1:328

Patented Mar. 20, 1928.

UNITED STA ALLAN D. SKINNER, F ERIE, PENNSYLVANIA, ASSIGNOR TO SKINNER ENGINE COM PANY, OF ERIE, PENNSYLVANIA, A GQRFQRATION OF PENNSYLVANIA.

ENGINE.

Application filed August 4, 1921. Serial No. 489,727.

This invention relates to a governor which' will control a double engine so that both engines will deliver a uniform effort in the same crank shaft. In the present invention two governors are utilized each supplying the governing force for each engine and these governors are connected so that they are compelled to' give uniform responses to the control valve gears and consequently l0 uniform performance of the engine. 'The only'added frictionaldisturbance to the two governors is'the slight friction which may be incident to the lack of uniformity in the operation of the two governors. I prefer to provide governors which are interchange able and which can be readily mounted ona' carrier provided with double sets of spoke-s.

the connecting mechanism being arranged between these spokes. Other details will appear from the specification and claims.

The invention is illustrated in the accompanying drawings as follows Fig. 1 shows a plan view of an engine. Fig. 2 a side elevation of one of the governors.

Fig. 3 a section on the line 3-3 in Fig. 2.

Fig. 4 a side elevation of the companion governor.

Fig. 5 a section on the line 5-5 in Fig. 4.

1 and 2 mark the engines operating upon cranks 3 and 4: respectively, these cranks being mounted upon a common shaft 5. The engines 1 and 2 are controlled from eccentrics 6 and 7 respectively mounted on a carrier 8 which in the ordinary practice is also the drive pulley of the engine. The carrier is formed in halves with the hubs 9 and 10 providing two lines of spokes 11 and 12 carrying the rim portions 13 and 14. the two halves being secured together by bolts 15. The eccentric 6 is rigidly mounted on a governor arm 16. The governor arm is provided with the weights 17 and 18 formed rigidly with the arm and the weight 19 pivotally secured to the arm at 20. A spring 21 resists the action of the weights, the spring being mounted on a. fulcrum bracket 21 on the carrier 8. The eccentric 7 is rigidly mounted on a governor arm 22, this arm being provided with the weights 23 and 24 fixed on the arm and the weight 25 pivotally connected at 26 with the arm. A spring 27 mounted on the bracket 28 resists the action of the weights, the bracket 28 being mounted on the carrier. These governors are of substantially the same construction as shown in the patent to Le Grand Skinner #628,591, July 11, 1899.

The arm 16 is mounted on a shaft 29 and is fixed against rotation thereon by a key 30. The shaft is mounted in the roller bearing 31 arranged in the hub of the carrier. A rock arm is keyed to the inner end of the shaft by a key The arm 22 is fixed on a shaft 3 1 by means of a key 35. The shaft 3% is mounted in a roller bearing 36 arranged in the hub of the carrierand a rock arm 37 is fixed on the inner end of the shaft by means of a key 37. A link 38 connects the rock arms 32 and 37, the rock arms being provided with the pins 39 and 40 for this purpose.

7 It will be noted that both governor structures are exactly the same, in fact, they are interchangeable, the only difference being that the side toward the carrier in each governor is reversed so that the governor arms may have the same relation to the direction of rotation. It will also be observed that if the governors are erfectly synchronized there will be no frictional loss through the connecting link whatever and that the only loss is what is necessary to compel uniform action. By mounting the governors on the carrier, particularly a carrier of the double spoke type which is common with this type of engine the connecting mechanism may be arranged between the lines of spokes and is thus conveniently located. A connection of this sort where the carrier is divided is more satisfactory than a shaft connection through the two parts of the carrier as it is very diflicult to get such alinement of such a connection through the parts as it is necessary to give the governor very slight clearance and still have a minimum of friction. The device is particularly applicable to governors operating on quarters and these governors may be swung to follow the crank arrangementwithout complicating the means of connection.

What I claim as new is 1. In an engine, the combination of a crank shaft; two cranks on the shaft; two eccentrics, one eccentric having operative relation with one crank and the other eccentric having operative relation with the other crank; a carrier for the eccentrics; two governors, one for each eccentric, each governor comprising a weighted arm on which an eccentric is rigidly mounted, a'shatt on which the arm is fiXed,and bearings for the shafts in the carrier; and connections between the shafts compelling equal responses by the ee- 5 centrics, said connections being at the pl co r rising a weighted arni on which an cecentric is rig dly mounted, a shalt on which i d, and hearings for the shafts I ariier'; and connections hetween the shatts conipell'ing equal responses by the ec- (said connections being at the opposit sides ofthe hearings from the governor a" n s; andicoinljrising rock arms on said shii'ftsj' and a link between the rock arms. 3.1 In an? engine, the combination of a crank shaft; two cranks on the shaft; two

eccentric'SQOne eccentric having operative relation with one crank and the other eccei1- having Operative relation with the erankj -a carrier for the eccentrics ted onthe crank shaft and having two lines ot' spoltes, said eccentrics being mountedfonll lieonter sides'of said spokes; governor in chanisrns rnonnted on the carrier ac- A triatinglthe' eccentrics, shafts carrying said eecentrijcsi and extending to a position between the'lines of spokes; and a connection 3' 1 ("F-1" ."I.' 1 1 I 7 arranged between the lines of sfiokes conneetingthe shafts.

4. In an engine, the combination of a crankshaft;two cran V shaftftwo 40 eccentricgone eccentrichavingoperative relation with one crank and the other eccentric having operative relation with the other crank; a carrier fqr tlie eccentrics mounted on the ci'a'iik slia ft and having two lines of spokes, said eccentrics heing inortnted outhe enter sides of said; spoke "shafts carl 'ying saideccentricsyan'd extending to aposjtion. betweeni the lines spokes a connect arranged between .th e I 1i nes of 1 pokes con nect ing theishaits: and a governor controlling saideccentrics. m 5.111. an. engrne the co nh natio of ,a

crank shz rftg two cranks on. the sha. ;,two

eccentrics; one eccentric havingjoperative lation withone crail kan heothe eccen tric having operative rela on with t e,.o t-he k; rr e b the eccen r csixnennt a 0n thecrank shaft and havingegtwoilines 95L I spokes, said eccentrics being mounted on the. outer sides of said spokes ;;,shafts,,carryin said eccentrics and extending to a pos tion between the lines of spokes .a; connection arrangedlbet ween the lines of. sPZ kQSe be: tween t e s a ts; a d. geveitne contr ls. ling said eccentrics gov nor beingfin dual form, one element being at eaeh vside, of the carrier and each element carrying an eccentiad it ,4 t.- 1 1 "I Q.) J. i; h 5. gr. is In testnnony whereof I have hereunto set my hand. in .325: i= r: .1212 A. D. SKINNER. 

